METHOD FOR MODIFYING NAVIGATION INFORMATION AND NAVIGATION APPARATUS USING THE SAME
A method for modifying navigation information for guiding the driver is provided in the present invention, in which attitude angle of a carrier at a specific location is detected and compared with an identifying information for judging whether the carrier is on a correct route or not. In another embodiment, the present invention further provides a navigation apparatus according the foregoing method, which comprises an inertia navigation unit, a satellite signal receiving unit, a database, and signal processing unit. The signal processing unit generates a navigation route in accordance with the start and destination and determines whether the attitude angle is conformed to the identifying information with respect to the specific location on the navigation route. If the attitude angle is not conformed to the identifying information, the signal processing unit remodifies the navigation route for the carrier.
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The present invention relates to a method for evaluating and modifying a navigation information, and more particularly, to a navigation information modification method and the navigation apparatus thereof capable of detecting an attitude angle of a carrier while using the detected attitude angle to determine whether the carrier is on a correct route.
BACKGROUND OF THE INVENTIONWith the development of communication construction, there are more and more underground passages and elevated roads, such as viaduct bridges, concentrated in urban area of our modem city. However, most global position system (GPS) devices currently available on the market are not accurate enough to determine whether theirs carrier had already entered an elevated road or are still driving on a surface road. Such inaccuracy often cause navigation errors to the navigation software embedded in the GPS devices that can be the main reason why people lose confidence in their ability to navigate. Please refer to
There are already many studies focus their efforts on the solving of the aforesaid navigation errors. One of which is a satellite navigation apparatus disclosed in TW 200739035, as shown in
The object of the present invention is to provide a method for modifying navigation information, capable of comparing an attitude angle of a carrier with an identification information of a navigation route so as to determine at the first instant whether a driver of the carrier had taken a route other than the navigation route, and thus modifying the navigation route according to the comparison for guiding the driving on a correct route to his/her destination specified in the navigation information.
The present invention further provide a navigation apparatus, being adapted for mounting on a carrier, which uses sensing components configured therein to detect an attitude angle of the carrier while comparing the current location of the carrier indicated by the detected attitude angle with an identification information, and thus providing the comparison to a navigation program embedded in the navigation apparatus for generating a navigation information to be incorporated with a map so as to be used for guiding a driver of the carrier.
In an exemplary embodiment of the invention, a method for modifying navigation information is provided, which comprises the steps of: (a) providing a navigation route to a carrier; (b) basing upon the navigation route to generate an identification information; (c) detecting an attitude angle of the carrier while the carrier is on the move; (d) determining whether the attitude angle is conformed to the identification information; (e) directing the flow to proceed back to the step (c) when the attitude angle is conformed to the identification information; (f) modifying the navigation route when the attitude angle is not conformed to the identification information.
In another exemplary embodiment of the invention, a navigation apparatus adapted for mounting on a carrier is provided, which comprises: an inertia navigation unit, capable of sensing an attitude angle of the carrier; a satellite signal receiving unit, for receiving a satellite signal; a database, for storing a communication information of road map and identification information corresponding to every specific location on the road map; and a signal processing unit, connected to the inertia navigation unit, the satellite signal receiving unit and the database, capable of generating a navigation route in accordance with a starting location and a destination and comparing the identification information of the specific location with the attitude angle for determines whether the attitude angle is conformed to the identification information so as to lo modify the navigation route when the identification information in not conformed to the attitude angle.
Yet, in another exemplary embodiment of the invention, a navigation apparatus adapted for mounting on a carrier is provided, which comprises: an inertia navigation unit, capable of sensing an attitude angle of the carrier; a satellite signal receiving unit, for receiving a satellite signal; a database, for storing a communication information of road map and identification information corresponding to every specific location on the road map; a signal processing unit, connected to the inertia navigation unit, the satellite signal receiving unit and the database, capable of generating a navigation route basing on the information stored in the database and comparing the identification information of the specific location with the attitude angle for determines whether the attitude angle is conformed to the identification information so as to modify the navigation route when the identification information in not conformed to the attitude angle; and a display device, connected to the signal processing unit, for displaying the navigation route, the modified navigation route and the information stored in the database.
Further scope of applicability of the present application will become more apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention and wherein:
For your esteemed members of reviewing committee to further understand and recognize the fulfilled functions and structural characteristics of the invention, several exemplary embodiments cooperating with detailed description are presented as the follows.
Please refer to
At step 21, an identification information is generated basing upon the navigation route; and then the flow proceeds to step 22. In the journey from the starting location to the destination following the given navigation route, the carrier is more than likely to encounter many different traffic conditions. For instance, the navigation route might lead the carrier to travel uphill, downhill, through an underground passage or enter an entrance of an elevated road. While encountering whichever traffic condition, the pitch angle of the carrier is inevitably going to change with the undulation of the navigation route. Please refer to
At step 22, an attitude angle is detected while the carrier is on the move; and then the flow proceeds to step 23. At step 23, the detected attitude angle is compared with the identification information corresponding to the navigation route for determining whether the attitude angle is conformed to the identification information. As the instance shown in
After the comparison, if the attitude angle is conformed to the identification information, it represent that the carrier 92 is traveling as planed by the navigation route and thus the flow will proceed back to step 22 for monitoring the attitude angle of the carrier 92 in a continuing manner; otherwise, if the attitude angle is not conformed to the identification information, the flow is directed to step 24. At step 24, the navigation route is modified to form a new navigation route basing on a current location of the carrier indicated by the detected attitude angle and a destination so as to guide the carrier to travel along the new navigation route to arrive at the destination, and then the flow is directed to proceed back to the step (22) for monitoring the attitude angle in a continuing manner.
Please refer to
Please refer to
As shown in
In this embodiment, the signal processing unit 33 is able to determine the coordinates of the carrier regarding to where exactly it is currently located basing on the information provided from the inertia navigation unit 30 and the satellite signal receiving unit 31. In addition the signal processing unit 33 is capable of generating a navigation route basing on a starting location and a destination while comparing the identification information of a specific location on the navigation route with the attitude angle detected at that specific location for determines whether the attitude angle is conformed to the identification information. When the identification information in not conformed to the attitude angle, the signal processing unit 33 will generate a new navigation route basing on a current location of the carrier indicated by the attitude angle and the destination. In another embodiment, the signal processing unit is further connected to a memory unit 34, which is used for storing the identification information corresponding to the provided navigation route for facilitating the comparison performed in the signal processing unit 33.
Moreover, the navigation apparatus further comprises a display device 35, which is connected to the signal processing unit 33 to be used for displaying the navigation route, the new navigation route and the information stored in the database. Generally, the display device 35 can be a flat panel display device such as a liquid crystal display or a light-emitting diode display device, and so on. It is noted that the display device can show an area map with a marking indicating the exact coordinates of the carrier, by which a user can easily identify the current location of the carrier. In addition, the display device 35 is designed to display an operation interface 350 thereon whose operations enables a starting location and a destination to be received by the signal processing unit 33 for defining the navigation route.
To sum up, the present invention provides a navigation information modification method and the navigation apparatus thereof that can modify a navigation route provided by the navigation apparatus in a real-time manner, by which a driver driving the carrier is informed with and guided by correct navigation information at all time during his/her journey.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims
1. A method for modifying navigation information, comprising the steps of:
- (a) providing a navigation route to a carrier;
- (b) basing upon the navigation route to generate an identification information;
- (c) detecting an attitude angle of the carrier while the carrier is on the move;
- (d) comparing the detected attitude angle with the identification information for determining whether the attitude angle is conformed to the identification information;
- (e) directing the flow to proceed back to the step (c) for monitoring the attitude angle in a continuing manner, when the attitude angle is conformed to the identification information;
- (f) modifying the navigation route when the attitude angle is not conformed to the identification information, and then directing the flow to proceed back to the step (c) for monitoring the attitude angle in a continuing manner.
2. The method for modifying navigation information of claim 1, wherein the navigation route is defined basing on a starting location and a destination.
3. The method for modifying navigation information of claim 1, wherein the modifying of the navigation route is performed basing on a current location of the carrier indicated by the attitude angle and a destination.
4. The method for modifying navigation information of claim 1, wherein the carrier is a wheeled vehicle.
5. The method for modifying navigation information of claim 1, wherein the identification information includes all the attitude angles of the carrier as it is traveling on the navigation route, or the range of the attitude angle of the carrier as it is traveling on the navigation route.
6. A navigation apparatus, being adapted for mounting on a carrier, comprising:
- an inertia navigation unit, capable of sensing an attitude angle of the carrier;
- a satellite signal receiving unit, for receiving a satellite signal;
- a database, for storing a communication information of a road map and identification information corresponding to every specific location on the road map; and
- a signal processing unit, connected to the inertia navigation unit, the satellite signal receiving unit and the database, capable of generating a navigation route and comparing the identification information of a specific location on the navigation route with the attitude angle for determines whether the attitude angle is conformed to the identification information so as to generate a new navigation route when the identification information in not conformed to the attitude angle.
7. The navigation apparatus of claim 6, wherein the carrier is a wheeled vehicle.
8. The navigation apparatus of claim 6, wherein the identification information includes all the attitude angles of the carrier as it is traveling on the navigation route, or the range of the attitude angle of the carrier as it is traveling on the navigation route.
9. The navigation apparatus of claim 6, wherein the navigation route is defined by the signal processing unit basing on a starting location and a destination.
10. The navigation apparatus of claim 6, wherein the new navigation route is generated by the signal processing unit basing on a current location of the carrier indicated by the attitude angle and a destination.
11. The navigation apparatus of claim 6, wherein the inertia navigation unit further comprises at least a gyroscopic sensor.
12. The navigation apparatus of claim 6, wherein the inertia navigation unit further comprises at least a differential module, and each differential module further comprises a pair of accelerometers, being arranged spacing from each other by a specific distance.
13. The navigation apparatus of claim 6, further comprising:
- an acceleration sensing module, further comprising at least an accelerometer.
14. A navigation apparatus, being adapted for mounting on a carrier, comprising:
- an inertia navigation unit, capable of sensing an attitude angle of the carrier;
- a satellite signal receiving unit, for receiving a satellite signal;
- a database, for storing a communication information of a road map and identification information corresponding to every specific location on the road map;
- a signal processing unit, connected to the inertia navigation unit, the satellite signal receiving unit and the database, capable of generating a navigation route basing on the information stored in the database and comparing the identification information of a specific location on the navigation route with the attitude angle for determines whether the attitude angle is conformed to the identification information so as to modify the navigation route into a new navigation route when the identification information in not conformed to the attitude angle; and
- a display device, connected to the signal processing unit, for displaying the navigation route, the new navigation route and the information stored in the database.
15. The navigation apparatus of claim 14, wherein the carrier is a wheeled vehicle.
16. The navigation apparatus of claim 14, wherein the identification information includes all the attitude angles of the carrier as it is traveling on the navigation route, or the range of the attitude angle of the carrier as it is traveling on the navigation route.
17. The navigation apparatus of claim 14, wherein the navigation route is defined by the signal processing unit basing on a starting location and a destination.
18. The navigation apparatus of claim 14, wherein the new navigation route is generated by the signal processing unit basing on a current location of the carrier indicated by the attitude angle and a destination.
19. The navigation apparatus of claim 14, wherein the display device is designed to display an operation interface thereon whose operations enables a starting location and a destination to be received by the signal processing unit for defining the navigation route.
20. The navigation apparatus of claim 14, wherein the display device is able to display a marking in correspondence to the coordinates of the carrier.
21. The navigation apparatus of claim 14, wherein the inertia navigation unit further comprises at least a gyroscopic sensor.
22. The navigation apparatus of claim 14, wherein the inertia navigation unit further comprises at least a differential module, and each differential module further comprises a pair of accelerometers, being arranged spacing from each other by a specific distance.
23. The navigation apparatus of claim 14, further comprising:
- an acceleration sensing module, further comprising at least an accelerometer.
Type: Application
Filed: May 29, 2008
Publication Date: Oct 29, 2009
Applicant: Industrial Technology Research Institute (Hsinchu)
Inventors: SHYANG-JYE CHANG (Taipei County), Yung-yu Chen (Pingtung County), Wei-ting Kuo (Tainan City)
Application Number: 12/129,051
International Classification: G01C 21/28 (20060101); G01C 21/00 (20060101);